Summary
Contents
Subject index
The updated Second Edition of Herschel Knapp’s friendly and practical introduction to statistics shows students how to properly select, process, and interpret statistics without heavy emphasis on theory, formula derivations, or abstract mathematical concepts. Each chapter is structured to answer questions that students most want answered: What statistical test should I use for this situation? How do I set up the data? How do I run the test? How do I interpret and document the results? Online tutorial videos, examples, screenshots, and intuitive illustrations help students “get the story” from their data as they learn by doing, completing practice exercises at the end of each chapter using prepared downloadable data sets.
Paired t Test and Wilcoxon Test
Paired t Test and Wilcoxon Test
Things never happen the same way twice.
Learning Objectives
Upon completing this chapter, you will be able to:
- Determine when it is appropriate to run a paired t test
- Verify that the data meet the criteria for paired t test processing: normality of differences
- Order a paired t test
- Interpret test results
- Resolve the hypotheses
- Document the results in plain English
- Calculate and document the Δ% formula
- Know when and how to run and interpret the Wilcoxon test
Videos
The tutorial videos for this chapter are Ch 07 - Paired t Test.mp4 and Ch 07 - Wilcoxon Test.mp4. These videos provide an overview of these tests, followed by the SPSS procedures for processing the pretest checklist, ordering the statistical run, and interpreting the results using the data ...
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